Question

Inference / Conclusion :
Initially, as the angle of incidence increases gradually, the angle of deviation decrc
after certain minimum value of incident angle, increases with the increase in the angle of money​

Answer 1

If we gradually increase the angle of incidence the angle of deviation first decreases array of light passing through the prism course in this process there is a variation in angle of deviation with the angle of incidence

Answer 2

Answer:

The deviation produced by the prism depends on the following four factors:

(a)Angle of incidence - As the angle of incidence increases, first the angle of deviation decreases and reaches to a minimum value for a certain angle of incidence. By further increasing the angle of incidence, the angle of deviation is found to increase.

(b)Material of prism (i.e.,on refractive index) - For a given angle of incidence, the prism with a higher refractive index produces a greater deviation than the prism which has a lower refractive index.

(c)Angle of prism - Angle of deviation increases with the increase in the angle of prism.

(d) Colour or wavelength of light used- Angle of deviation increases with the decrease in wavelength of light.